How fast a resting mash loses temperature, °C per hour.
2 °C/h suits a lidded, insulated cooler tun. That's the usual vessel for a
decoction mash, and it holds heat well enough that the tun needs no heat
source. A direct-fired kettle sitting off the flame is nearer 4, and a rig
with active temperature control is 0. Callers pass those in themselves.
How fast a resting mash loses temperature, °C per hour.
2 °C/h suits a lidded, insulated cooler tun. That's the usual vessel for a decoction mash, and it holds heat well enough that the tun needs no heat source. A direct-fired kettle sitting off the flame is nearer 4, and a rig with active temperature control is 0. Callers pass those in themselves.